content: /*
   * Copyright 2016-2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.akaita.java.rxjava2debug.extensions;
  
  import java.util.concurrent.Callable;
  
  import com.akaita.java.rxjava2debug.extensions.SingleOnAssembly.OnAssemblySingleObserver;
  import io.reactivex.*;
  import io.reactivex.exceptions.Exceptions;
  
  /**
   * Wraps a Publisher and inject the assembly info.
   *
   * @param <T> the value type
   */
  final class SingleOnAssemblyCallable<T> extends Single<T> implements Callable<T> {
  
      final SingleSource<T> source;
  
      final RxJavaAssemblyException assembled;
  
      SingleOnAssemblyCallable(SingleSource<T> source) {
          this.source = source;
          this.assembled = new RxJavaAssemblyException();
      }
  
      @Override
      protected void subscribeActual(SingleObserver<? super T> s) {
          source.subscribe(new OnAssemblySingleObserver<T>(s, assembled));
      }
  
      @SuppressWarnings("unchecked")
      @Override
      public T call() throws Exception {
          try {
              return ((Callable<T>)source).call();
          } catch (Exception ex) {
              Exceptions.throwIfFatal(ex);
              throw (Exception)assembled.appendLast(ex);
          }
      }
  }
  